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what is this guardrail?

what is this guardrail?

RE: what is this guardrail?

(OP)
based on google this is a highway guardrail.

is this highway guardrail specifically used to deform easily during impact to lessen the effect on the driver and passenger?

because I want to use channel or I beam instead and tell client this is more for highway than pipeline protection.

RE: what is this guardrail?

RE: what is this guardrail?

(OP)
I don't see a purpose to use highway guardrail as opposed to channel or I beam?

RE: what is this guardrail?

The purpose is that they are efficient in resisting vehicular impact. They do not act as beams as much as they act as tension members when impacted. That is why you will see anchored end conditions, often times with a cable anchor (parallel to the w-beams and anchored down into the ground via a mass of concrete).

"It is imperative Cunth doesn't get his hands on those codes."

RE: what is this guardrail?

They're cheaper, lighter, easier to erect and they'll absorb energy to some degree as they deform.

RE: what is this guardrail?

In the late 60s, when the barriers started appearing on racetracks, they were called Armco Barriers, and were I think rolled by Armco Steel, now subsumed by AK Steel.

https://en.wikipedia.org/wiki/AK_Steel_Holding

Mike Halloran
Pembroke Pines, FL, USA

RE: what is this guardrail?

In my part of the woods, we call it a W-beam guardrail. The biggest supplier is Trinity Highway around here although there are tons of suppliers. MacGrubers explanation is pretty spot on about it being a tension member.

I think 12.5' is the standard length and if you have anything greater than that you overlap the pieces.

RE: what is this guardrail?

(OP)
Client wants it all around the site. I see 90 degree connection between guardrails but I can't find any guardrail connection to web of H piling. All they have is guardrail to flange of H piles.

RE: what is this guardrail?

I may be misunderstanding your application, or the geometry you propose, but if you attach the guardrail to the web of an H-pile, that sort of guarantees that any vehicle sliding along the guardrail is going to impact the flange of the pile. Along a highway, that would be a bad thing, which would be a good reason for not providing the hardware to do as I think you propose.





Mike Halloran
Pembroke Pines, FL, USA

RE: what is this guardrail?

These are similar to Armco barriers... you might do a search. They are cost effective, strong, corrosion resistant and energy absorbing... and, you can buy them 'off the shelf'.

Dik

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